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Old macOS / OS X Versions Article Pages

The above operating systems are no longer supported by Apple with security updates - see our Securing Older Operating Systems article.

macOS 10.13 (High Sierra) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Adobe Creative Suite CS and Java RE v6
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
macOS 32-Bit Applications Unsupported With macOS 10.15 And Later
How To Setup Let's Encrypt For OS X / macOS + Server 5.x
Mac Security Article #6 - Networking/Internet/Online Shopping
iCloud Frequently Asked Questions FAQ
Virtualising a physical Mac/hard disk/clone/disk image file
Backing Up Your Data / Apple Computer

macOS 10.12 (Sierra) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
How To Obtain/Download macOS Server for macOS 10.12 Sierra
Adobe Creative Suite CS and Java RE v6
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
How To Setup Let's Encrypt For OS X / macOS + Server 5.x
Mac Security Article #6 - Networking/Internet/Online Shopping
Mac Security Article #7 - Older Operating Systems
macOS 10.12 Sierra Third Party Product Compatibility Info
iCloud Frequently Asked Questions FAQ

OS X 10.11 (El Capitan) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Adobe Creative Suite CS and Java RE v6
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
How To Setup Let's Encrypt For OS X / macOS + Server 5.x
OS X 10.11 El Capitan Third Party Product Compatibility Info
Mac Security Article #6 - Networking/Internet/Online Shopping
Mac Security Article #7 - Older Operating Systems
iCloud Frequently Asked Questions FAQ
Virtualising a physical Mac/hard disk/clone/disk image file

OS X 10.10 (Yosemite) Popular Articles

OS X 10.10 Yosemite Post Install Frequently Asked Questions
Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Adobe Creative Suite CS and Java RE v6
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
How To Setup Let's Encrypt For OS X / macOS + Server 5.x
Mac Security Article #6 - Networking/Internet/Online Shopping
Mac Security Article #7 - Older Operating Systems
iCloud Frequently Asked Questions FAQ
Virtualising a physical Mac/hard disk/clone/disk image file

OS X 10.9 (Mavericks) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Adobe Creative Suite CS and Java RE v6
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
Mac Security Article #6 - Networking/Internet/Online Shopping
Mac Security Article #7 - Older Operating Systems
iCloud Frequently Asked Questions FAQ
Virtualising a physical Mac/hard disk/clone/disk image file
Backing Up Your Data / Apple Computer
How To Repair Your Boot Disk's Permissions

OS X 10.8 (Mountain Lion) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Adobe Creative Suite CS and Java RE v6
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
Mac Security Article #6 - Networking/Internet/Online Shopping
Mac Security Article #7 - Older Operating Systems
iCloud Frequently Asked Questions FAQ
Virtualising a physical Mac/hard disk/clone/disk image file
Backing Up Your Data / Apple Computer
How To Repair Your Boot Disk's Permissions

OS X 10.7 (Lion) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Adobe Creative Suite CS and Java RE v6
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
Mac Security Article #6 - Networking/Internet/Online Shopping
Mac Security Article #7 - Older Operating Systems
iCloud Frequently Asked Questions FAQ
Virtualising a physical Mac/hard disk/clone/disk image file
Backing Up Your Data / Apple Computer
How To Repair Your Boot Disk's Permissions

Mac OS X 10.6 (Snow Leopard) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Adobe Creative Suite CS and Java RE v6
Mac Security Article #6 - Networking/Internet/Online Shopping
Mac Security Article #7 - Older Operating Systems
Backing Up Your Data / Apple Computer
How To Repair Your Boot Disk's Permissions
Keeping Apple Software Products Up-To-Date
macOS / OS X / Mac OS X System Updates Explained
Mac Security Article #3 - Malware, Social Engineering and Scams

Mac OS X 10.5 (Leopard) Popular Articles

Java (Security) For macOS / OS X / Mac OS X
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macOS / OS X / Mac OS X System Updates Explained
How To Clone Your Primary/Boot Drive
How To (Re)install macOS
Basic Networking 101
Creating An Emergency Boot Drive For macOS
How To Restore Your Mac Computer From A Backup
How To Create An External Installation Device

macOS / OS X / Mac OS X Recently Updated Articles

macOS Server for Big Sur Frequently Asked Questions
Apple Photos for Mac Frequently Asked Questions FAQ
macOS / OS X Privacy Settings
How To Obtain/Download macOS Server for Catalina
Using the macOS Recovery Modes (10.7 or later)
Using the macOS Internet Recovery Mode (10.7 or later)
Mac Security Article #7 - Older Operating Systems
iCloud Frequently Asked Questions FAQ
Preparing For macOS 10.15 Catalina Or macOS Server 5.9

Articles Relating To All Versions Of macOS / OS X / Mac OS X

macOS Server for Big Sur Frequently Asked Questions
Apple Photos for Mac Frequently Asked Questions FAQ
macOS / OS X Privacy Settings
How To Obtain/Download macOS Server for Catalina
Using the macOS Recovery Modes (10.7 or later)
Using the macOS Internet Recovery Mode (10.7 or later)
Mac Security Article #7 - Older Operating Systems
iCloud Frequently Asked Questions FAQ
Preparing For macOS 10.15 Catalina Or macOS Server 5.9
Mac OS X 10.5 Leopard Combo Updates
Mac Security Article #6 - Networking/Internet/Online Shopping
How To Setup Let's Encrypt For OS X / macOS + Server 5.x
Mac Security Article Extra - For People Wearing Tinfoil Hats
How To Obtain/Download OS X Server for OS X 10.10 Yosemite
How To Obtain/Download OS X Server for OS X 10.11 El Capitan
How To Obtain/Download macOS Server for macOS 10.12 Sierra
How To Obtain/Download macOS Server for macOS 10.13 High Sierra
How To Obtain/Download macOS Server for macOS 10.14 Mojave
macOS Server 5.6.3-5.7.x Frequently Asked Questions FAQ
macOS Server 5.9 Frequently Asked Questions FAQ
Keeping Apple Software Products Up-To-Date
iLife + iWork 2013 Frequently Asked Questions FAQ
Preparing For macOS X 10.13 High Sierra and/or macOS Server 5.4-5.6.3
Preparing For macOS 10.14 Mojave and/or macOS Server 5.7.x
Adobe Creative Suite CS and Java RE v6
Mac Security Article #9 - System Integrity Protection (SIP)
Java (Security) For macOS / OS X / Mac OS X
How To Clone Your Primary/Boot Drive
How To Setup A Basic Web/Email Server with OS X 10.8/Server 2.x
How To Setup A Basic Web/Email Server With OS X/macOS + Server 5.x
Virtualising OS X 10.8 Mountain Lion
Virtualising Mac OS X 10.6 Snow Leopard (Server)
Virtualising OS X 10.11 El Capitan
Virtualising macOS 10.12 Sierra
Virtualising a physical Mac/hard disk/clone/disk image file
Virtualising Adobe Creative Suite with Mac OS X / OS X / macOS
OS X 10.7 Or Later Does Not Support Rosetta / PowerPC Software
How To Obtain/Purchase OS X 10.7 Lion Server
OS X 10.7 Lion Server Frequently Asked Questions FAQ
Preparing for OS X 10.7 Lion or Lion Server
OS X 10.8 Mountain Lion Server Frequently Asked Questions FAQ
How To Obtain/Purchase OS X 10.8 Mountain Lion Server
OS X 10.9 Mavericks Server Frequently Asked Questions FAQ
How To Obtain/Download OS X 10.9 Mavericks Server
OS X Server 4/5 for OS X 10.10 Yosemite Frequently Asked Questions
Preparing For OS X 10.10 Yosemite Or Yosemite Server
OS X Server 5 Frequently Asked Questions FAQ
Preparing For OS X 10.11 El Capitan Or OS X Server 5
macOS Server 5.2 Frequently Asked Questions FAQ